If that important film director had not seen Chaplin acting a very funny part in a play, Chaplin might not have got his first film part in the States.

• 要是那位颇有影响的电影导演没看到卓别林在剧中扮演一位非常滑稽的角色,卓别林也许就得不到在美国第一次扮演电影角色的机会了。教师可以用虚拟语气问学生一些问题。